Nom du corpus

Corpus Systématique Animale

Titre du document

Relation between egg production and food consumption in species of the genus Pardosa (Lycosidae, Araneae) under experimental conditions of food-abundance and food-shortage

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Arthropodes_v2b_01570
Auteur(s)
  • A. Kessler
Affiliation(s)
  • Department of Biology, Free University, Amsterdam, The Netherlands
Résumé

1. The amount of food intake during the egg ripening period and the conversion of this food into eggs (biomass and number of eggs) in four Pardosa species is described. The amount of food taken in is dependent on the size of the spider species. Basically the process of conversion of food into egg-biomass is the same for all four species. Thus the size of the spider species mainly determines the number of eggs in the egg-sac. There are however minor differences in “efficiency” of the process and in dryweight of the eggs between the species. These differences which are discussed complicated the general process of food conversion into number of eggs. 2. When food shortages are supplied during the egg ripening period two reactions can be observed: a) All species tend to keep the dry weight of the eggs at a constant level. b) Some species produce the same number of eggs under conditions of small food shortages as under conditions of maximum food supply, using reserve material from the body of the female. In this case the female either shows no increase in body weight or a decrease while others immediately adapt the number of eggs to the quantity of food given. Under conditions of strong food shortages, however, both groups of species show the same reaction.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - ecology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
Identifiant ISTEX
D45F3C196E85B053F2085D409E0A7714F528E5ED
Revue

Oecologia

Année de publication
1971
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.64
Sous-corpus
  • Arthropodes
Type de publication
Journal
ark:/67375/1BB-3PVSK65G-3
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